activityStreamService = new ActivityStreamService();
}
String eventId = null;
Map<String, String> params = new HashMap<String, String>();
params.put("rollup", "true");
ActivityStreamEntityList list = activityStreamService.getStream("@me", "@all", "@all", params);
for(int i = 0; i < list.size(); i++){
eventId = list.get(i).getEventId();
if(eventId != null){
break;
}
}